What’s Vulnerable › Vulnerabilities

CVE-2026-2594: Smart Custom Fields <= 5.0.7 - Authenticated (Author+) Stored Cross-Site Scripting via Attachment Title

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-17 · updated 2026-07-17
• Weakness: CWE-79

Description

The Smart Custom Fields plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 5.0.7. This is due to insufficient input sanitization and output escaping of uploaded image attachment titles. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. NOTE: This vulnerability was partially patched in 5.0.7.

Affected products

• inc2734 Smart Custom Fields: through 5.0.7

References

• https://plugins.trac.wordpress.org/changeset/3485210/smart-custom-fields
• https://plugins.trac.wordpress.org/changeset/3609564/smart-custom-fields
• https://www.wordfence.com/threat-intel/vulnerabilities/id/110a1b28-50e0-430e-82d4-c254d73836e2?source=cve

Get alerted when CVE-2026-2594 or the next vulnerability affects your stack